How do piston rings contribute to engine efficiency and longevity?

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A) They create a seal between the piston and cylinder wall, reducing oil consumption and improving fuel efficiency.

B) They increase the overall weight of the engine, enhancing stability during operation.

C) They help in cooling the engine by allowing coolant to flow around the piston.

D) They function as a buffer to absorb vibrations from the engine, reducing noise.

Quiz: How do piston rings contribute to engine efficiency and long